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How Do I Change Ifconfig in Linux?

Maya Lin-Takahashi • • 4 min read
How Do I Change Ifconfig in Linux?
Contents

To change your IP address on Linux, use the “ifconfig” command followed by the name of your network interface and the new IP address to be changed on your computer. To assign the subnet mask, you can either add a “netmask” clause followed by the subnet mask or use the CIDR notation directly.

How do I change the IP address in Linux?

How to Manually Set Your IP in Linux (including ip/netplan)

  1. Set Your IP Address. ifconfig eth0 192.168.1.5 netmask 255.255.255.0 up.
  2. Set Your Default Gateway. route add default gw 192.168.1.1.
  3. Set Your DNS Server. Yes, 1.1. 1.1 is a real DNS resolver by CloudFlare. echo “nameserver 1.1.1.1” > /etc/resolv.conf.

How do I check for ifconfig in Linux?

ifconfig command is generally available under /sbin directory. So you will need root or sudo access to run this on many of operating systems. As per above output, this system has IP address 192.168. 10.199 on Ethernet interface eth0.

Maya Lin-Takahashi
Author

Maya Lin-Takahashi

Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.